.body_wrap {
  background: rgba(248, 248, 248, 1);
  position: relative;
  width: 100vw;
  height: 100vh;
  // display: flex;
  // flex-direction: column;
  overflow-y: scroll;

  // 主要page 模块
  .main_section {
    width: 1200px;
    margin: 25px auto;
    background-color: #fff;
    // height: calc(100vh - 55px);
    // flex: 1;
  }
}
